Ice-cream freezer



T.l VALERIUSAND 0. LARSEN.

Vmi CREAM FREEZER.` APBLICATION FILED JUNE 30. 1919.

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'rnnononn L. vALnRIUs .AND OLAF .Lansnim or roar ATKINSON, WISCONSIN,

ASSIGNORS T0 THE CREAMERY PACKAGE MFG'. COMPANY, OIF CHICAGQ,y LLINOES, A. CORPORATION OF ILLINOIS. f

ICE-CREAM FREEZER.

cold thick molasses, the cream being ,dis-

charged into packing cans which, when filled, are placed in a hardening room. The cream is discharged Vfrom theV freezing cylinderl through an opening in the front head or cover the cylinder.v

One object of our invention is to provide an outlet allowing very rapid discharge of 4the frozen material from the freezer.

Another object is to provide a gate which will maintain a tightvclosure when shut and prevent leaking.

A special object is to provide anoutlet which, when opened and Vclosed again, will not present 'any exposed surfaces to catch the cream where it may melt and dripor lfall on the floor, resulting in an unsanitary condition, an untidy appearance and waste.

This application is a continuation in part v of our applicationSerial No. 741,626, filed January 13, 1913, and of our'copendingapplication Serial No. 167,661, filed May 10, 1917, `which latter is a division of the first `mentioned application,

In the accompanying drawings, Figure 1 is an end view,vv and Fig. 2 a vertical section of lthe detachable head of ,anice cream freezer showing the application of our invention thereto. Fig. 3 is an end view and Fig. 4 a. vertical section of a modificationA of the head and sliding gate shown in Figs.

1 and 2. l

In. the embodimentof our invention selected for illustration, 10 indicates. a domeshaped detachable head adaptedto close one en d yof ahorizontal ice cream freezer A cylinder. Lugs 11 on the periphery ofthe head 1 0 areaadaptedfto ,receive suitable retaining members, not shown, tc hold the head in place- A. Centrally located. Shaft 12 is.' re:- ceived, in a suitable bearing .1 3 in the head.

. Animation mea 11111530.1919. seriaiNaeczsee.

Speccation of Letters Patent. Eatented Aug. 15,4 '1922'.

rotatable spider let` is mounted on 4the shaft 12 and carries inclinedblades 15 adapted to agit-ate thecream adjacenethe peripheryof thevfreezery cylinder- 16 and to j move'it towards the head 1Q. Loops `17 proi ject intothe annularrecess 18 of the head to agltate the mixture lying inthe recess.

An air vent 19 is formed at `the' upper lside of thehead andclosed by a suitable cover slightlyabovejthe top ofthe vent to., allow 20 carrying a 'lug 21'whic'h spaces` the cover l i for the free 'escape o fair when avbatchfof mix is introducedL into the cylinder.` `An i opening 22 in the lower portion of the head g is' adapted t0 lOClSe'Cl'by sliding game?, 5 TeCl'PIOCllng in slots 24 formedinA Suitable.

enlargements 25 projecting vfrom thedomeshaped'head A leaf spring- 26..'isfseoured at its centerto the center y0ffthef1 ,rate 23 by' .any suitable 1I 1e`an's,suc`hl as solder orrvets, and the promotingends of saidsprmg gare sprung into" and slide in' the g'f'rooves24y ycarrying the gate. Vlhe 'spring maintains the gate at all times in,c losefitti ng,

liquid-tight engagement with theiiat surface surrounding. the opening 22. l I, y. I Means'for operating the 'gate are pr@ vided, comprising a hand lever 27.suitab1y pivoted'onlugs 28 projectingffrom the head vand i carrying a pivotally` `connected drag I link 29' connected atv its lower.- end ,tojlugs 30 integrally/formed with or suitab'lyfattached to the gate 2 3. vThe leverf27 has an inclined face atf3'2 adaptedfto engagefthe i face of the headf and limit the opening movement'of the gate. The outlet includesv fthe downwardly inclined'discharge chute. 31

adapted to guide the` cream l falling out` ofi thev aperture 22 into, suitable receptacle,

not shown.

In' the modification showninlFigsfand .4, we vhave further improved the, novel "outlet illustrated in Figs.; lzand 2 by the pro.- visionl of improved stops to limit `the motion of the gatein both directions and eliminati-ng the` dischare chute. It has been found in lpractice thatl .when cream lis elosedfaild Will eventually drop... Onto? the loorl vIn thev device illustrated 'in Figa-"3 l@ll SellaleeCl'. from@ l device. S11-'Ch' ask illustrated in Fig. f2, some cream will adhere t0.. ,12.1.19

discharge chute after the rvgate has been y stantially ident-ical with those illustrated in Figs. l and 2. The opening 327 instead of being circular as illustrated in V-Figs. l and 2, is approximately square with rounded corners to provide greater area of discharge opening. rllhe gate 38 closing said opening, reciprocates in slots 39 and is held against the flat surface around the opening by two leaf springs L t0 with their ends sprung into the slots 39. No chute is provided in this outlet andthevmetal at the lower end of the slotted guides el terminates horizontally at 4-2.

The hand lever i3 carries an angular lug ad and the connecting link /t carries a cooperating inclined face 46 adapted to engage the lug when the gate is in wide-open position as indicated in do'ted lines and limit the opening movement of the gate. The upper end of the enlargement forming the slotted vguides is shaped to form an inclined face 47 vadapted to engage the angular lug 44E on downward movement of thelever and limit the closing movement of the gate. The parts are so designed that with the lug in engagement with the .stop 47, 4the lower edge of the gate,'which is cut at a bevel and will shear in two the stream of cream flowing through opening-.37, comes to rest flush withV the lower surface of the slotted guides. lt will be seen that upon closure of the gate there is no projecting lip or other surface to which creamy can adhere. c

-While we have disclosed in detail the embodiment of our invention at present preferred, it should be clearly understood that the detailed disclosure is for purposes of illustration only and that` many modificau tions and improvements of the specific einbodiments described will naturally occur to a person skilled in the art. TWe, aim in the subjoined claims to cover all such legitimate lmodiiications and improvements.

7e claim as our invention,

l. An ice cream feezer having, in combination, a head, said head havingy an rinclined portion adjacent Aits lower edge,said inclined portion having a discharge opening, and a sliding gate adapted' to open and close said opening, the lower portion ofthe 'periphery of said opening being' so located that cream may fall vertically AdownwardV therefrom without touching any other part of the freezer. 'p

2. An ice cream freezer having, in' combination, a vdetachable head, said head having an inclined portion adjacent its lower edge, said inclined portionv having a disrcharge opening, a flat faceon said inclined portion extending around the periphery of saidV opening, 4a sliding gate resiliently pressed against said fiat face and 'adapted to open and close said opening, a lever and a drag link for operating said gate, and

ineaeia a lag on said lever adapted by engagement with said drag link` to limit the Vupward motion of said gate, and by engagement with said head to limit the downward movement 'of said gate.

3. An ice cream freezer having, in combination, a head, said head having an inclined portion adjacent its lower edge, said inclined portion having a discharge opening, a flat face on said inclined portion eX- tending around the periphery of said opening, a sliding gate adapted to open 'and close said opening, a lever and a drag link for opening and closing saidA gate, and means on said lever for limiting the downward motion of said gate,

e. An ice cream freezer having, in combination, a head, an inclined portion adjacentthe lower edge of said head, said inclined portion having a discharge opening, a sliding gate adapted to closesaid opening, the lower edge of said sliding gate being beveled off horizontally and adapted when said gate is in fully closed position to lie flush with the lower horizontal edge of said head. i

5. in ice cream freezer having, in combination, a horizontal freezer cylinder, a head closing the end kof said cylinder, an inclined portion adjacent the lower vedge of said l1eadsaid inclined portion having a discharge opening, a sliding gate adapted to open and closesaid opening, guideways for said gate, said guideways being open at their lower ends, and means for limiting the 100 closing motion of said gate.

j 6. An ice cream freezer having, in combination, a dome-shaped head, said head having a discharge opening, a fiat face formed on .said head adjacent the periphery 105 of said opening, said face extending in a l plane inclined to the vertical, and a sliding .gate resiliently pressed against `said face and adapted to close said opening.'

7. An ice cream freezer having, in com-k 110 bination a head having an opening, slotted guides adjacent saidv opening, a discharge gate slidable in said slotted guides and slidably engaging said head, and adapted to close said opening, and a leaf spring en- 115 gaging said slotted guides and said gate and resiliently holding said gate against said head.

8. An ice cream freezer having, in combination, a head having an opening, slotted 120 guides adjacent said opening, a gate slidable i in said guides and slidably engaging said head to close said opening, and a leaf spring attached to said gatewith its ends engagingsaid slotted guides to resiliently hold 125 said gate against said head. j

9.; An ice cream freezer having, in coinbination, a horizontal freezing cylinder, a head closing the forward end of said-cylinder, said head having an inclined'portion 130 adjacent its lower edgefseid inelined p0r- 'discharge openingbeing so loca-ted that tion having e discharge opening` end 'e hatv cream ineyvviiall vertically downward there-'10` face surrounding seid opening,y said liet from Without touching' any other part of face extending to the periphery of the head, the freezer. j

and e sliding gate adapted to Cover and In testimony Whereowe have hereunto uncover said opening, said gate Whenclosed Set- Our hands. 1 extending to the periphery of the head, the THEODORE L. VALERIUS. lower portion of the periphery .of said- OLAF LARSEN. 

